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Message-Id: <20220405135758.774016-3-catalin.marinas@arm.com>
Date: Tue, 5 Apr 2022 14:57:50 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-mm@...ck.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
"Rafael J. Wysocki" <rafael@...nel.org>
Subject: [PATCH 02/10] drivers/base: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN
ARCH_DMA_MINALIGN represents the minimum (static) alignment for safe DMA
operations while ARCH_KMALLOC_MINALIGN is the minimum kmalloc() objects
alignment.
Signed-off-by: Catalin Marinas <catalin.marinas@....com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>
---
drivers/base/devres.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 864d0b3f566e..0ed39464ad08 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -29,10 +29,10 @@ struct devres {
* Some archs want to perform DMA into kmalloc caches
* and need a guaranteed alignment larger than
* the alignment of a 64-bit integer.
- * Thus we use ARCH_KMALLOC_MINALIGN here and get exactly the same
+ * Thus we use ARCH_DMA_MINALIGN here and get at least the same
* buffer alignment as if it was allocated by plain kmalloc().
*/
- u8 __aligned(ARCH_KMALLOC_MINALIGN) data[];
+ u8 __aligned(ARCH_DMA_MINALIGN) data[];
};
struct devres_group {
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